/*
* Copyright 2012 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
/**
* Copyright (c) 2004-2011 QOS.ch
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
package io.netty.util.internal.logging;
import org.apache.log4j.
Level;
import org.apache.log4j.
Logger;
/**
* <a href="http://logging.apache.org/log4j/1.2/index.html">Apache Log4J</a>
* logger.
*/
class
Log4JLogger extends
AbstractInternalLogger {
private static final long
serialVersionUID = 2851357342488183058L;
final transient
Logger logger;
/**
* Following the pattern discussed in pages 162 through 168 of "The complete
* log4j manual".
*/
static final
String FQCN =
Log4JLogger.class.
getName();
// Does the log4j version in use recognize the TRACE level?
// The trace level was introduced in log4j 1.2.12.
final boolean
traceCapable;
Log4JLogger(
Logger logger) {
super(
logger.
getName());
this.
logger =
logger;
traceCapable =
isTraceCapable();
}
private boolean
isTraceCapable() {
try {
logger.
isTraceEnabled();
return true;
} catch (
NoSuchMethodError ignored) {
return false;
}
}
/**
* Is this logger instance enabled for the TRACE level?
*
* @return True if this Logger is enabled for level TRACE, false otherwise.
*/
@
Override
public boolean
isTraceEnabled() {
if (
traceCapable) {
return
logger.
isTraceEnabled();
} else {
return
logger.
isDebugEnabled();
}
}
/**
* Log a message object at level TRACE.
*
* @param msg
* - the message object to be logged
*/
@
Override
public void
trace(
String msg) {
logger.
log(
FQCN,
traceCapable ?
Level.
TRACE :
Level.
DEBUG,
msg, null);
}
/**
* Log a message at level TRACE according to the specified format and
* argument.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for level TRACE.
* </p>
*
* @param format
* the format string
* @param arg
* the argument
*/
@
Override
public void
trace(
String format,
Object arg) {
if (
isTraceEnabled()) {
FormattingTuple ft =
MessageFormatter.
format(
format,
arg);
logger.
log(
FQCN,
traceCapable ?
Level.
TRACE :
Level.
DEBUG,
ft
.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log a message at level TRACE according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the TRACE level.
* </p>
*
* @param format
* the format string
* @param argA
* the first argument
* @param argB
* the second argument
*/
@
Override
public void
trace(
String format,
Object argA,
Object argB) {
if (
isTraceEnabled()) {
FormattingTuple ft =
MessageFormatter.
format(
format,
argA,
argB);
logger.
log(
FQCN,
traceCapable ?
Level.
TRACE :
Level.
DEBUG,
ft
.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log a message at level TRACE according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the TRACE level.
* </p>
*
* @param format
* the format string
* @param arguments
* an array of arguments
*/
@
Override
public void
trace(
String format,
Object...
arguments) {
if (
isTraceEnabled()) {
FormattingTuple ft =
MessageFormatter.
arrayFormat(
format,
arguments);
logger.
log(
FQCN,
traceCapable ?
Level.
TRACE :
Level.
DEBUG,
ft
.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log an exception (throwable) at level TRACE with an accompanying message.
*
* @param msg
* the message accompanying the exception
* @param t
* the exception (throwable) to log
*/
@
Override
public void
trace(
String msg,
Throwable t) {
logger.
log(
FQCN,
traceCapable ?
Level.
TRACE :
Level.
DEBUG,
msg,
t);
}
/**
* Is this logger instance enabled for the DEBUG level?
*
* @return True if this Logger is enabled for level DEBUG, false otherwise.
*/
@
Override
public boolean
isDebugEnabled() {
return
logger.
isDebugEnabled();
}
/**
* Log a message object at level DEBUG.
*
* @param msg
* - the message object to be logged
*/
@
Override
public void
debug(
String msg) {
logger.
log(
FQCN,
Level.
DEBUG,
msg, null);
}
/**
* Log a message at level DEBUG according to the specified format and
* argument.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for level DEBUG.
* </p>
*
* @param format
* the format string
* @param arg
* the argument
*/
@
Override
public void
debug(
String format,
Object arg) {
if (
logger.
isDebugEnabled()) {
FormattingTuple ft =
MessageFormatter.
format(
format,
arg);
logger.
log(
FQCN,
Level.
DEBUG,
ft.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log a message at level DEBUG according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the DEBUG level.
* </p>
*
* @param format
* the format string
* @param argA
* the first argument
* @param argB
* the second argument
*/
@
Override
public void
debug(
String format,
Object argA,
Object argB) {
if (
logger.
isDebugEnabled()) {
FormattingTuple ft =
MessageFormatter.
format(
format,
argA,
argB);
logger.
log(
FQCN,
Level.
DEBUG,
ft.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log a message at level DEBUG according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the DEBUG level.
* </p>
*
* @param format
* the format string
* @param arguments an array of arguments
*/
@
Override
public void
debug(
String format,
Object...
arguments) {
if (
logger.
isDebugEnabled()) {
FormattingTuple ft =
MessageFormatter.
arrayFormat(
format,
arguments);
logger.
log(
FQCN,
Level.
DEBUG,
ft.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log an exception (throwable) at level DEBUG with an accompanying message.
*
* @param msg
* the message accompanying the exception
* @param t
* the exception (throwable) to log
*/
@
Override
public void
debug(
String msg,
Throwable t) {
logger.
log(
FQCN,
Level.
DEBUG,
msg,
t);
}
/**
* Is this logger instance enabled for the INFO level?
*
* @return True if this Logger is enabled for the INFO level, false otherwise.
*/
@
Override
public boolean
isInfoEnabled() {
return
logger.
isInfoEnabled();
}
/**
* Log a message object at the INFO level.
*
* @param msg
* - the message object to be logged
*/
@
Override
public void
info(
String msg) {
logger.
log(
FQCN,
Level.
INFO,
msg, null);
}
/**
* Log a message at level INFO according to the specified format and argument.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the INFO level.
* </p>
*
* @param format
* the format string
* @param arg
* the argument
*/
@
Override
public void
info(
String format,
Object arg) {
if (
logger.
isInfoEnabled()) {
FormattingTuple ft =
MessageFormatter.
format(
format,
arg);
logger.
log(
FQCN,
Level.
INFO,
ft.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log a message at the INFO level according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the INFO level.
* </p>
*
* @param format
* the format string
* @param argA
* the first argument
* @param argB
* the second argument
*/
@
Override
public void
info(
String format,
Object argA,
Object argB) {
if (
logger.
isInfoEnabled()) {
FormattingTuple ft =
MessageFormatter.
format(
format,
argA,
argB);
logger.
log(
FQCN,
Level.
INFO,
ft.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log a message at level INFO according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the INFO level.
* </p>
*
* @param format
* the format string
* @param argArray
* an array of arguments
*/
@
Override
public void
info(
String format,
Object...
argArray) {
if (
logger.
isInfoEnabled()) {
FormattingTuple ft =
MessageFormatter.
arrayFormat(
format,
argArray);
logger.
log(
FQCN,
Level.
INFO,
ft.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log an exception (throwable) at the INFO level with an accompanying
* message.
*
* @param msg
* the message accompanying the exception
* @param t
* the exception (throwable) to log
*/
@
Override
public void
info(
String msg,
Throwable t) {
logger.
log(
FQCN,
Level.
INFO,
msg,
t);
}
/**
* Is this logger instance enabled for the WARN level?
*
* @return True if this Logger is enabled for the WARN level, false otherwise.
*/
@
Override
public boolean
isWarnEnabled() {
return
logger.
isEnabledFor(
Level.
WARN);
}
/**
* Log a message object at the WARN level.
*
* @param msg
* - the message object to be logged
*/
@
Override
public void
warn(
String msg) {
logger.
log(
FQCN,
Level.
WARN,
msg, null);
}
/**
* Log a message at the WARN level according to the specified format and
* argument.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the WARN level.
* </p>
*
* @param format
* the format string
* @param arg
* the argument
*/
@
Override
public void
warn(
String format,
Object arg) {
if (
logger.
isEnabledFor(
Level.
WARN)) {
FormattingTuple ft =
MessageFormatter.
format(
format,
arg);
logger.
log(
FQCN,
Level.
WARN,
ft.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log a message at the WARN level according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the WARN level.
* </p>
*
* @param format
* the format string
* @param argA
* the first argument
* @param argB
* the second argument
*/
@
Override
public void
warn(
String format,
Object argA,
Object argB) {
if (
logger.
isEnabledFor(
Level.
WARN)) {
FormattingTuple ft =
MessageFormatter.
format(
format,
argA,
argB);
logger.
log(
FQCN,
Level.
WARN,
ft.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log a message at level WARN according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the WARN level.
* </p>
*
* @param format
* the format string
* @param argArray
* an array of arguments
*/
@
Override
public void
warn(
String format,
Object...
argArray) {
if (
logger.
isEnabledFor(
Level.
WARN)) {
FormattingTuple ft =
MessageFormatter.
arrayFormat(
format,
argArray);
logger.
log(
FQCN,
Level.
WARN,
ft.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log an exception (throwable) at the WARN level with an accompanying
* message.
*
* @param msg
* the message accompanying the exception
* @param t
* the exception (throwable) to log
*/
@
Override
public void
warn(
String msg,
Throwable t) {
logger.
log(
FQCN,
Level.
WARN,
msg,
t);
}
/**
* Is this logger instance enabled for level ERROR?
*
* @return True if this Logger is enabled for level ERROR, false otherwise.
*/
@
Override
public boolean
isErrorEnabled() {
return
logger.
isEnabledFor(
Level.
ERROR);
}
/**
* Log a message object at the ERROR level.
*
* @param msg
* - the message object to be logged
*/
@
Override
public void
error(
String msg) {
logger.
log(
FQCN,
Level.
ERROR,
msg, null);
}
/**
* Log a message at the ERROR level according to the specified format and
* argument.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the ERROR level.
* </p>
*
* @param format
* the format string
* @param arg
* the argument
*/
@
Override
public void
error(
String format,
Object arg) {
if (
logger.
isEnabledFor(
Level.
ERROR)) {
FormattingTuple ft =
MessageFormatter.
format(
format,
arg);
logger.
log(
FQCN,
Level.
ERROR,
ft.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log a message at the ERROR level according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the ERROR level.
* </p>
*
* @param format
* the format string
* @param argA
* the first argument
* @param argB
* the second argument
*/
@
Override
public void
error(
String format,
Object argA,
Object argB) {
if (
logger.
isEnabledFor(
Level.
ERROR)) {
FormattingTuple ft =
MessageFormatter.
format(
format,
argA,
argB);
logger.
log(
FQCN,
Level.
ERROR,
ft.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log a message at level ERROR according to the specified format and
* arguments.
*
* <p>
* This form avoids superfluous object creation when the logger is disabled
* for the ERROR level.
* </p>
*
* @param format
* the format string
* @param argArray
* an array of arguments
*/
@
Override
public void
error(
String format,
Object...
argArray) {
if (
logger.
isEnabledFor(
Level.
ERROR)) {
FormattingTuple ft =
MessageFormatter.
arrayFormat(
format,
argArray);
logger.
log(
FQCN,
Level.
ERROR,
ft.
getMessage(),
ft.
getThrowable());
}
}
/**
* Log an exception (throwable) at the ERROR level with an accompanying
* message.
*
* @param msg
* the message accompanying the exception
* @param t
* the exception (throwable) to log
*/
@
Override
public void
error(
String msg,
Throwable t) {
logger.
log(
FQCN,
Level.
ERROR,
msg,
t);
}
}